.clearfix:after {
    content: "";
    display: block;
    clear: both;
}

.f-l {
    float: left;
}

.f-r {
    float: right;
    position: relative;
}

.white_content {
    display: none;
    position: absolute;
    top: 60px;
    right: 10px;
    width: 20%;
    border: 2px solid #009688;
    background-color: white;
    z-index: 1002;
    overflow: auto;
}

.white_content_top {
    float: top;
    margin-top: 20px;
}

.white_content_bottom {

    float: bottom;
}

.clearfloat {
    clear: both;
    height: 0;
    font-size: 1px;
    line-height: 0px;
}